Fuel tank vent



FIG. 1 is a top perspective view of a fuel tank vent showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The subject matter shown in broken lines forms no part of the claimed design. 

The ornamental design for a fuel tank vent, as shown and described. 